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https://www.readbyqxmd.com/read/29438528/maintenance-of-certification-perceptions-and-attitudes-of-neurosurgeons
#1
Maya A Babu, Linda M Liau, E Sander Connolly, Fredric B Meyer
Assuring clinical competence throughout the career of a neurosurgeon is of paramount importance for patient safety. We present the first comprehensive survey of all neurosurgeons board certified through the American Board of Neurological Surgery (ABNS) to evaluate perceptions of Maintenance of Certification (MOC). We administered a validated, online, confidential survey to 4899 neurosurgeons (2435 ABNS diplomates participating in MOC, 1440 diplomates certified prior to 1999 [time-unlimited certificates], and 1024 retired diplomates)...
February 9, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29435766/assessment-of-soil-organic-carbon-fractions-and-carbon-management-index-under-different-land-use-types-in-olesharo-catchment-narok-county-kenya
#2
Bernice M Sainepo, Charles K Gachene, Anne Karuma
BACKGROUND: The changes in land use and land cover have a strong effect on the total soil organic carbon, its fractions and its overall soil health. This study carried out in Olesharo Catchment, Kenya, was to quantify the differences in total organic carbon (TOC), particulate organic carbon (POC), mineral organic carbon (MOC) and carbon management index (CMI) among four land use types: grasslands, shrublands, agricultural lands and barelands. It was also purported to evaluate the use of CMI as an indicator for soil degradation or improvement in response to land use and land cover changes...
February 12, 2018: Carbon Balance and Management
https://www.readbyqxmd.com/read/29429591/early-stage-mucinous-ovarian-cancer-a-review
#3
Erin K Crane, Jubilee Brown
Mucinous ovarian carcinomas (MOCs) are an uncommon subset of epithelial neoplasms, both clinically and molecularly distinct from other ovarian cancers. Pathologic diagnosis proves challenging, and metastatic disease from other sites-especially the digestive tract-must be excluded. Fortunately, most patients are diagnosed at an early stage of disease and often present with large, unilateral adnexal masses. Survival for patients with stage IA disease approaches over 90%, and surgery alone is sufficient. Patients with stage IB-II disease should receive adjuvant treatment but the specific regimen is controversial...
February 8, 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29413777/advanced-conservative-treatment-of-complete-acute-rupture-of-the-lateral-ankle-ligaments-verifying-by-stabilometry
#4
Jana Řezaninová, Luboš Hrazdira, Dagmar Moc Králová, Zdeněk Svoboda, Azriel Benaroya
BACKGROUND: The aim of this study was to investigate the result of the specific conservative treatment of acute lateral ankle ligaments rupture and verify the effect of this therapy by stabilometry. METHODS: 17 young athletes were examined after acute lateral ankle sprain (grade III). Diagnosis was based on musculoskeletal ultrasound examinations. Pressure plate evaluated postural stability after conservative treatment at regular intervals during 1year. RESULTS: There were no significant differences in postural stability in double-leg stance between limbs...
February 2018: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/29391459/optimising-the-glaucoma-signal-noise-ratio-by-mapping-changes-in-spatial-summation-with-area-modulated-perimetric-stimuli
#5
Lindsay Rountree, Pádraig J Mulholland, Roger S Anderson, David F Garway-Heath, James E Morgan, Tony Redmond
Identification of glaucomatous damage and progression by perimetry are limited by measurement and response variability. This study tested the hypothesis that the glaucoma damage signal/noise ratio is greater with stimuli varying in area, either solely, or simultaneously with contrast, than with conventional stimuli varying in contrast only (Goldmann III, GIII). Thirty glaucoma patients and 20 age-similar healthy controls were tested with the Method of Constant Stimuli (MOCS). One stimulus modulated in area (A), one modulated in contrast within Ricco's area (CR), one modulated in both area and contrast simultaneously (AC), and the reference stimulus was a GIII, modulating in contrast...
February 1, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29381367/synergistic-effects-of-c-%C3%AE-moc-and-ag-for-efficient-oxygen-reduction-reaction
#6
Lujie Cao, Pengpeng Tao, Minchan Li, Fucong Lyu, Zhenyu Wang, Sisi Wu, Wenxi Wang, Yifeng Huo, Li Huang, Zhouguang Lu
It remains challenging to prepare highly active and stable catalysts from earth-abundant elements for the oxygen reduction reaction (ORR). Herein we report a facile method to synthesize cost-effective heterogeneous C/α-MoC/Ag electrocatalysts. Rotating disc electrode (RDE) experiments revealed that the obtained C/α-MoC/Ag exhibited much superior catalytic performance for ORR than that of C/Ag, C/α-MoC, or even the conventional Pt/C. First-principles calculations indicated that the enhanced activity could be attributed to the efficient synergistic effects between Ag and α-MoC/C by which the energy barrier for O2 dissociation has been substantially reduced...
January 30, 2018: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/29376418/growth-and-liver-histology-of-channa-punctatus-exposed-to-a-common-biofertilizer
#7
S Nath, V Matozzo, D Bhandari, C Faggio
Mustard oil cake (MOC) is widely used as biofertilizer in the field of agriculture and aquaculture. Channa punctatus was exposed to 0.42 g.L-1 sublethal concentration for 4, 7, 14, 21 and 28 days. Due to such exposure, body growth and histological changes in liver were observed. It was revealed that weight, length and breadth of fish were gradually increased with the days of exposure in compare to control fish, whereas, liver showed an increase in sinusoidal space and lipidosis during early days, followed by a recovery from the stress of MOC on the 28th day...
January 28, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29352112/direct-cell-cell-contact-between-mature-osteoblasts-and-osteoclasts-dynamically-controls-their-functions-in-vivo
#8
Masayuki Furuya, Junichi Kikuta, Sayumi Fujimori, Shigeto Seno, Hiroki Maeda, Mai Shirazaki, Maki Uenaka, Hiroki Mizuno, Yoriko Iwamoto, Akito Morimoto, Kunihiko Hashimoto, Takeshi Ito, Yukihiro Isogai, Masafumi Kashii, Takashi Kaito, Shinsuke Ohba, Ung-Il Chung, Alexander C Lichtler, Kazuya Kikuchi, Hideo Matsuda, Hideki Yoshikawa, Masaru Ishii
Bone homeostasis is regulated by communication between bone-forming mature osteoblasts (mOBs) and bone-resorptive mature osteoclasts (mOCs). However, the spatial-temporal relationship and mode of interaction in vivo remain elusive. Here we show, by using an intravital imaging technique, that mOB and mOC functions are regulated via direct cell-cell contact between these cell types. The mOBs and mOCs mainly occupy discrete territories in the steady state, although direct cell-cell contact is detected in spatiotemporally limited areas...
January 19, 2018: Nature Communications
https://www.readbyqxmd.com/read/29317712/muc4-immunohistochemistry-is-useful-in-distinguishing-epithelioid-mesothelioma-from-adenocarcinoma-and-squamous-cell-carcinoma-of-the-lung
#9
Amany Sayed Mawas, Vishwa Jeet Amatya, Kei Kushitani, Yuichiro Kai, Yoshihiro Miyata, Morihito Okada, Yukio Takeshima
The differential diagnosis of epithelioid mesothelioma from lung adenocarcinoma and squamous cell carcinoma requires the positive and negative immunohistochemical markers of mesothelioma. The IMIG guideline has suggested the use of Calretinin, D2-40, WT1, and CK5/6 as mesothelial markers, TTF-1, Napsin-A, Claudin 4, CEA as lung adenocarcinoma markers p40, p63, CK5/6, MOC-31 as squamous cell markers. However, use of other immunohistochemical markers is still necessary. We evaluated 65 epithelioid mesotheliomas, 60 adenocarcinomas, and 57 squamous cell carcinomas of the lung for MUC4 expression by immunohistochemistry and compared with the previously known immunohistochemical markers...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29278814/electrochemiluminescence-evaluation-for-carbohydrate-antigen-15-3-based-on-the-dual-amplification-of-ferrocene-derivative-and-pt-bsa-core-shell-nanospheres
#10
Hong Ke, Xin Zhang, Chusen Huang, Nengqin Jia
Herein, a novel methodology for ultrasensitive and facile breast cancer biomarker carbohydrate antigen 15-3 (CA15-3) evaluation was proposed by fabricating a sandwiched ECL immunosensor. In the protocol, MOCs-Fc and Pt@BSA-luminol nanohybrids were successfully synthesized and further employed to achieve dual-amplification strategy for luminol-H2O2 system. Notably, inherent porous microstructure and large specific surface area from MOCs enabled a high loading of Fc, which succeeded in catalyzing luminol-H2O2 ECL emission and therefore enhancing ECL response...
December 21, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29276975/non-tip-auditory-nerve-responses-that-are-suppressed-by-low-frequency-bias-tones-originate-from-reticular-lamina-motion
#11
Hui Nam, John J Guinan
Recent cochlear mechanical measurements show that active processes increase the motion response of the reticular lamina (RL) at frequencies more than an octave below the local characteristic frequency (CF) for CFs above 5 kHz. A possible correlate is that in high-CF (>5 kHz) auditory-nerve (AN) fibers, responses to frequencies 1-3 octaves below CF ("tail" frequencies) can be inhibited by medial olivocochlear (MOC) efferents. These results indicate that active processes enhance the sensitivity of tail-frequency RL and AN responses...
December 14, 2017: Hearing Research
https://www.readbyqxmd.com/read/29242820/establishing-a-live-cartilage-on-cartilage-interface-for-tribological-testing
#12
Robert L Trevino, Jonathan Stoia, Michel P Laurent, Carol A Pacione, Susan Chubinskaya, Markus A Wimmer
Mechano-biochemical wear encompasses the tribological interplay between biological and mechanical mechanisms responsible for cartilage wear and degradation. The aim of this study was to develop and start validating a novel tribological testing system, which better resembles the natural joint environment through incorporating a live cartilage-on-cartilage articulating interface, joint specific kinematics, and the application of controlled mechanical stimuli for the measurement of biological responses in order to study the mechano-biochemical wear of cartilage...
March 2017: Biotribology
https://www.readbyqxmd.com/read/29240838/recognized-focused-practice-does-sub-specialty-designation-offer-value-to-the-neurosurgeon
#13
Maya A Babu, Linda M Liau, Fredric B Meyer
Vehicles for life-long assessment such as Maintenance of Certification tend to focus on generalist neurosurgical knowledge. However, as neurosurgeons advance in their careers, they tend to narrow their practice and increase volumes in certain specific types of operations. Failing to test the type of procedures most relevant to the practitioner is a lost opportunity to improve the knowledge and practice of the individual neurosurgeon. In this study, we assess the neurosurgical community's appetite for designations of board-recognized Recognized Focused Practice (RFP)...
2017: PloS One
https://www.readbyqxmd.com/read/29240744/an-osteoarthritis-model-of-care-should-be-a-national-priority-for-new-zealand
#14
Jennifer Baldwin, Andrew Briggs, Warwick Bagg, Peter Larmer
Osteoarthritis is highly prevalent, disabling and costly to the person and the community. The burden of this chronic condition is predicted to increase dramatically over the coming decades. Healthcare spending on osteoarthritis is unsustainable and action is needed to improve care delivery. At present, there is an over-emphasis on surgical and pharmacological interventions, despite evidence supporting conservative treatments such as exercise, weight loss and education. While clinical guidelines provide recommendations regarding best practice (ie, what to do), they fail to address how to operationalise these recommendations into clinical practice...
December 15, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/29213229/reflex-modification-audiometry-reveals-dual-roles-for-olivocochlear-neurotransmission
#15
Paul D Allen, Anne E Luebke
Approximately 15% of American adults report some degree of difficulty hearing in a noisy environment or have auditory filtering difficulties. There are objective clinical tests of auditory filtering, yet few tests exist for mouse models that do not rely on extensive training. We have used reflex modification audiometry (RMA) and developed exclusion criteria for the mouse model. This RMA based test makes use of the acoustic startle response (ASR) and the ability of prepulses to inhibit the ASR [i.e., prepulse inhibition (PPI)] to assess the mouse's ability to detect prepulse signals presented in quiet or embedded in masking noise...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29192619/tinnitus-medial-olivocochlear-system-and-music-exposure-in-adolescents
#16
María Hinalaf, Ana L Maggi, Mercedes X Hüg, Pablo Kogan, Jorge Pérez Villalobo, Ester C Biassoni
INTRODUCTION: The most common cause of tinnitus is the exposure to noise; in the case of adolescents, music is the main sound source they are exposed to. Currently, one of the hypotheses about the genesis of tinnitus is related to the deterioration in the functioning of the medial olivocochlear system (MOCS). AIM: The aim of this study was to determine the presence or absence of tinnitus in adolescents with normal hearing and to relate it to: (a) the functioning of the MOCS, by the contralateral suppression of the transient evoked otoacoustic emissions (TEOAEs) and (b) the musical general exposure (MGE)...
March 2017: Noise & Health
https://www.readbyqxmd.com/read/29158039/association-between-the-american-board-of-internal-medicine-s-general-internist-s-maintenance-of-certification-requirement-and-mammography-screening-for-medicare-beneficiaries
#17
Bradley M Gray, Jonathan L Vandergrift, Rebecca S Lipner
BACKGROUND: Breast cancer is a leading cause of death in the United States. Continuing medical education programs such as the American Board of Internal Medicine's Maintenance of Certification (MOC) program can increase early detection of cancers by educating physicians about the benefits of screening. Did the imposition of American Board of Internal Medicine's MOC requirement affect guideline-compliant mammography screening? METHOD: To address this question, we took advantage of a natural experiment that occurred when one group of general internists was required to complete MOC by 2001 because they initially certified in 1991 (MOC required) and another group was grandfathered out of this requirement because they initially certified in 1989 (MOC grandfathers)...
November 17, 2017: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/29153596/the-aging-neurosurgeon-when-is-enough-enough-attitudes-toward-ceasing-practice-and-testing-in-late-career
#18
Maya A Babu, Linda M Liau, Robert J Spinner, Fredric B Meyer
OBJECTIVE: To present the first wide-scale survey to assess perceptions of testing the aging neurosurgeon. PATIENTS AND METHODS: This study included 4899 neurosurgeons, 2435 American Board of Neurological Surgery Diplomates participating in Maintenance of Certification (MOC), 1440 Diplomates certified before 1999 (grandfathered), and 1024 retired Diplomates. We developed an online confidential survey conducted from March 1, 2016, to May 31, 2016. We received 1449 responses overall (30% response rate)...
November 14, 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/29135685/olivocochlear-efferent-activity-is-associated-with-the-slope-of-the-psychometric-function-of-speech-recognition-in-noise
#19
Ian B Mertes, Erin C Wilbanks, Marjorie R Leek
OBJECTIVES: The medial olivocochlear (MOC) efferent system can modify cochlear function to improve sound detection in noise, but its role in speech perception in noise is unclear. The purpose of this study was to determine the association between MOC efferent activity and performance on two speech-in-noise tasks at two signal-to-noise ratios (SNRs). It was hypothesized that efferent activity would be more strongly correlated with performance at the more challenging SNR, relative to performance at the less challenging SNR...
November 9, 2017: Ear and Hearing
https://www.readbyqxmd.com/read/29134475/synchronized-spontaneous-otoacoustic-emissions-provide-a-signal-to-noise-ratio-advantage-in-medial-olivocochlear-reflex-assays
#20
James D Lewis
Detection of medial olivocochlear-induced (MOC) changes to transient-evoked otoacoustic emissions (TEOAE) requires high signal-to-noise ratios (SNR). TEOAEs associated with synchronized spontaneous (SS) OAEs exhibit higher SNRs than TEOAEs in the absence of SSOAEs, potentially making the former well suited for MOC assays. Although SSOAEs may complicate interpretation of MOC-induced changes to TEOAE latency, recent work suggests SSOAEs are not a problem in non-latency-dependent MOC assays. The current work examined the potential benefit of SSOAEs in TEOAE-based assays of the MOC efferents...
November 13, 2017: Journal of the Association for Research in Otolaryngology: JARO
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